It would take a geologist and bio-chemist to determine the origin of the crap mixture that comes out of gas pumps
BP extracts the Alaskan North Slope oil but immediately trades it to Japan for Peruvian oil so they save shipping costs to the East coast.
Then, they cook it with a little African stuff and some LA goop and sell it under the green and yellow sign.
By the way, why are the Saudis being allowed to carry 500 billion in debt. If they have excess cash, then they should be paying back their loans. Their country is not stable--anyone lending them money is putting their companies in jeopardy. It is just a matter of time before they are toppled.